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Finding the Fourth Proportional to 62,087.78, 93,131.70 and 15,340.70

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Solution

The fourth proportional to 62,087.78, 93,131.70 and 15,340.70 is: 23,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,087.78 : 93,131.70 = 15,340.70 : x
  2. Step 2: Convert to fraction form
    62,087.78/93,131.70 = 15,340.70/x
  3. Step 3: Cross multiply
    62,087.78x = 93,131.70 × 15,340.70
  4. Step 4: Simplify right side
    62,087.78x = 1,428,705,470.19
  5. Step 5: Solve for x
    x = 1,428,705,470.19/62,087.78
  6. Step 6: Final answer
    x = 23,011.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.